Steel 13MnNi6-3-A vs 13MnNi6-3-NT
Steel · 13MnNi6-3 temper comparison
13MnNi6-3-A and 13MnNi6-3-NT are two conditions of the same steel grade, 13MnNi6-3: A (solution annealed) versus NT. The chemistry is identical, so every difference below comes from the condition. 13MnNi6-3-NT is the stronger of the two: yield strength 375 MPa (54.4 ksi) against 310 MPa (45 ksi) for 13MnNi6-3-A, about 21% more; tensile strength follows at 530 MPa (76.9 ksi) vs 480 MPa (69.6 ksi). In exchange, 13MnNi6-3-A is the more ductile: elongation 30% versus 27% for 13MnNi6-3-NT, and 13MnNi6-3-NT is harder (155 HB vs 140 HB).
13MnNi6-3-AChoose it when the part is bent, formed or impact-loaded.
13MnNi6-3-NTChoose it when strength drives the design.
13MnNi6-3-A vs 13MnNi6-3-NT: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all steel grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Tensile Strength (Ultimate)
Yield Strength (0.2% offset)
Elongation at Break
Reduction in Area
Shear Strength
Fatigue Strength (Endurance Limit)
Fracture Toughness (K_IC)
Charpy V-Notch Impact (RT)
Hardness, Brinell
Hardness, Rockwell B
Hardness, Vickers
Same in both: Elastic (Young's) Modulus 210 GPa30.5 Msi · Shear Modulus 81 GPa11.7 Msi · Bulk Modulus 160 GPa23.2 Msi · Poisson's Ratio 0.3
Physical
Density and transition temperatures.
Same in both: Density 7.85 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,460°C2,660 °F · Liquidus Temperature 1,510°C2,750 °F
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Same in both: Specific Heat Capacity 461 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 11.7 µm/m·K6.5 µin/in·°F · Latent Heat of Fusion 250 J/g107 BTU/lb · Max Service Temperature (continuous) 350°C662 °F · Min Service Temperature -60°C-76 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Galvanic Potential (seawater, vs SCE) -0.65 V · Corrosion Resistance 14 / 100
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Machinability Rating (AISI 1212 = 100 %)
Weldability
Formability (cold)
Same in both: Brazeability / Solderability 60 / 100 · Polishability 55 / 100
Sustainability
Primary-production footprint per kilogram.
Same in both: Embodied Energy (primary production) 25 MJ/kg10,748 BTU/lb · Embodied Carbon (primary production) 1.9 kg CO₂/kg · Embodied Water 35 L/kg4.2 gal/lb · Typical Recycled Content 25%
Strength versus weight
Yield strength against density for every steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
13MnNi6-3-A vs 13MnNi6-3-NT — frequently asked
Is 13MnNi6-3-NT stronger than 13MnNi6-3-A?
Yes. 13MnNi6-3-NT has a typical yield strength of 375 MPa (54.4 ksi) against 310 MPa (45 ksi) for 13MnNi6-3-A — about 21% more. Tensile strength is 530 MPa (76.9 ksi) vs 480 MPa (69.6 ksi).
Which condition does FabDigit quote by default, A or NT?
N is the default 13MnNi6-3 condition in the FabDigit quote flow (neither A nor NT). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.
When should I choose 13MnNi6-3-A over 13MnNi6-3-NT?
Pick 13MnNi6-3-A when the part is bent, formed or impact-loaded. Pick 13MnNi6-3-NT when strength drives the design.
Ready to make it?
Upload a CAD file and FabDigit prices the part in 13MnNi6-3-A and 13MnNi6-3-NT side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.
Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.